#include<bits/stdc++.h>
using namespace std;


int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    freopen("arena.in","r",stdin);
    freopen("arena.out","w",stdout);
    int t;
    cin >> t;
    for (int i = 0;i<t;i++){
        cout << 0;
    }
    return 0;
}
